Air date: 2022-05-23

Runtime: 43 min

A pregnant Tuarangisaurus is in distress—and her young calf can sense it—as she travels waters that are home to the ocean's deadliest predators.

Air date: 2022-05-24

Runtime: 41 min

Above the deserts of North Africa, aerial combat ensues as male Barbaridactylus pterosaurs fight for the attention of females below.

Air date: 2022-05-25

Runtime: 40 min

With its feathered body and duck bill, the eight-ton Deinocheirus wades through an Asian wetland in search of relief from pesky biting flies.

Air date: 2022-05-26

Runtime: 42 min

Within the snow-covered forest, a tense standoff develops between ancient rivals, Pachyrhinosaurus and Nanuqsaurus.

Air date: 2022-05-27

Runtime: 42 min

A journey through an underground cave in North America turns perilous when a young Triceratops is separated from its mother.